Stamp-affixing device



May 19, 1925.

k G. S. RIDER STAMP AFFIXING DEVICE Filed March 1. 1923' 2 ShecS -Sheet 1 NI] N w Mm fim. NW @N Ma &. ww Q Aw, QM Q h a d 1 H .mh Q 4T lilll fin. \Q N )N .m we ww m H \1 2 \N M \w 3 mm .Q R

INVEFTOR.

Ga /Mu: 5. E05, BY C i' Q ATTORNEYS,

a. s. RIDER STAMP AFFIXING DEVICE May 19, 1925.

Filed March 1. 1923 2 Sh'eetS-Sheet 2 a mw INVENTOR. GRfl/Vl (LLE 6. E7051 A TTORNEYS Patented May 19, 1925.

some? GRANVILLE S. RIDER, 01F NEVJ YORK, N. Y.

S TAMP-AFFIXIN G DEVICE.

Application filed March 1, 1923. Serial No. 622,020.

T (ZZZ whom it may concern:

Be it known that I, GRANVILLE S. RIDER, a citizen of the United States. residing at New York, county of New York, and State of New York, have invented certain new and useful Improvements in StampAltixing Devices, of which the following is a specifica tion.

This invention relates to machines of the type which are used for affixing posta 'o or other stamps to mail matter or the like and has for its principal object to provide a new and improved machine of this character which is simple and sturdy in its constructional details and also positive and accurate in its operation.

Considered in its more specific aspects, another object of my invention is to provide a new and improved "feeding device for drawing the stamps from a roll of stamps and delivering only a single stamp in accurately aligned position to a cutting knife which severs the stamp from the strip or roll and which feeding device .is actuated .in perfectly tin ed relationship with the actuation of the other parts of the device.

Another object is to incorporate a moistening device in the machine.

A further object is to so construct the operating mechanism of the machine that a single stroke of a manually operable handle will cause the actuation of all the parts of the machine.

Another object is to so construct the connecting mechanism between the feeding de vice and the manually operable handle that an accidental partial operation of the handle will not disturb the proper timed relationship ot the parts.

A. further object is to provide lost motion means in the connection between the ope ati g handle and the feeding device whereby the feeding device will remain stationary during the severing of the stamp from the strip and ati'ixing it to the mail matter.

For the accomplishment of these and such further objects as will hereinafter be apparent to those skilled in the art to which this :ippert-ains, th invention cons s in the construction. con 'nation and a ng nent of parts herein specifically described and illus trated in the accompanying drawings, wherein is shown a preferred embodiment of the invention, but it is to be understood that changes, variations and modifications may be resorted to which fall within the scope of the claims hereunto appended.

In the drawings forming a portion of this specification Fig. 1 is a central sectional view on the line l-l of Fig. 5.

Fig. 2 is a side elevation.

Fig. 3 is a side elevation broken away of the machine as scen'from the side opposite to that shown in Fig. 2, and showing the parts for operating the feeding devicein the position they occupy when the operating handle is in its top or upper position.

4- is a view similar to Fig. 3 but showing the position occupied by the parts when the handle is in its lower position. 1

Fig. 5 is an end view as seen from the left side of Figs. 1 and 2.

Fig. 6 is an enlarged sectional detail of the lrni e and plunger taken on the line l-'l of 5.

Fig. 7 is an enlarged sectional detail broken away taken on the line 7-7 of Fig. 2.

Fig. 8 is an enlarged sectional detail on the line 8-8 of Fig. 2, and

Figs. 9 and 10 are respectively a central section and end view 01 a modified form OTl a feeding device. Y

Referring to the drawings the device consists of a framework comprising the side pieces of sheet metal suitably connected in spaced relationship by small tie rods. Guide lugs 16 project laterally from the upper part of each of the side pieces and en gage about the vertically extending arms 17 of a yoke 18 to the center of whichis secured a handle 19. The lower portions of the arms 17 are slotted as at 20 to receive the pins 21, these slots and pins cooperating with the guide lugs 16 to guide the movement of the yoke 18 when the handle 19 is depressed.

A spindle 22 for holding the roll of stamps 23 extends between the side pieces and is detachably and rotatably mounted in the ends of the rotatable plate 28 for substantially 225 of its revolution, and th'is'is acopenended elongated slots, 24:, formed in ioncomplished in the following manner, the plates and 26 are pivotally mounted on the fixed shaft 30 and a spring 31 coiled thereabout, the ends of the springs being secured in the plate 27 and to the side pieces 1 adapted to mesh.

15, so as to normally urge the plate 27 towards the shaft 29. It will be noted that the inner edge of plate 25 is curled upwardly as at 25 to avoid a cutting action on'the stamps.

Means are provided for automatically operating the. rotatable plate 28 a half of a revolution for each complete downward stroke of the handle 19 and for maintaining the plate 28 stationary during the upward stroke of the handle, and this means comprises the following parts :fiXed upon one end of the shaft 29, as shown in Figs. 3 and 4, is a pinion 35, with which the rack 36 is Back 36 has projecting laterally therefrom a pin 37, one end of which extends into a slot 38 provided in the adjacent side piece 15, and the other end ofthe pin 37 extends into a cam 39 projecting from the lower end of one of the yoke arms 17. This cam has an inclined track or portion 40 and a straight track or portion 41 for a purpose which will hereinafter be set forth.

A downward strokeof the handle 19 will cause the inclined cam track 40 to move the rack 36 towards the right of Figs. 3 and 4 as will be readily understood. A flat spring 42 normally holds the rack 36 downwardly in engagementwith the pinion and as the rack moves to the right the small L shaped finger 43 which is preferably integral with the rack passes under the fined track 44 proectin outwardl I from the side iece 15 the upper face of the finger 43 contracting with the under face of the track whereby the rack 36 will be held in engagement with the pinion 35. This movement of the rack in engagement with the pinion obviously will cause the p1n1on 35 to rotate in the directhe pin passes from the inclined track tion of the small arrow in Fig. 3, thus pro to the straight track 41 no further move ment of the rack 36 to the right is performed and further downward movement of the handle 19 is therefore ineffective to move the rack. The fixed track 44 is just of sufficient length to allow the finger 43 tofclear handle 19 and yoke 18 are moved upwardly by the spring provided for this purpose the rack 36 will be movedto the left (Figs. 3 and 4) as the pin 37 again enters the inclined track 40, but this movement of the rack 36 will have no effect upon the pinion 35 for when the return movement of the rack begins the lower face. of the finger 43 will pass over the upper face of the fixed track 44 and hold the rack out of engagement with the pinion until it is again urged downwardly at its right hand limit of movement by the spring 42.

Means are provided for preventing accidental movement of the plate 28 and comprises the cam wheel 46 (see Fig. 2) provided with the cut out portions 47 with which'the flat spring 48 is adapted to engage, the portions 47 and spring being so positioned as to hold the plate 28 in the position shown in Fig. 1.,

Means for severing or cutting the stamp from the strip or roll comprises the'cutting knife 50 secured in the downwardly projecting flange 51 of the plate 52 which is secured by means of the pin 53 to the stamper 54 with a lost motion connection in the following manner the stamper 54 is drilled as at 55 to receive the plunger 56 slidably mounted on the lower end of pin 53 and a small plate 57 is set into and secured to the stamper 54 in any suitable manner. A spring 58 is mounted between the plate 57 and plunger 56 and is adapted to normally hold the plate 52 in contact with the upper face of the stamper as shown in -1 andj7. The stamper 54 is provided with the laterally projecting ears 59 (see Fig. 7 which extend through the slots 60 in the lower end of the side pieces 15 and into the path of movement of the lower extremities of the yoke arms 17. VJhen the handle 19 is pushed downwardly, carrying the yoke 18 with it, the ends of the Al'l'I-IS 17 will StI'lliG against the cars 59, ust as the pin 37 is passing from the inclined track 40 to the straight track 41. v

As theyoke arms move downwardly in contact with the ears 59 the plate 52 and stamper 54 will move downwardly as a unit until the edge of the knife 50 strikes the bottom of the groove 61 formed in the knife block 62 "which is secured to and extends between the side pieces 1.5.

mally holding the stamper 54 and plate 52' in engagement. v

The knife is extended outwardly beyond the sides of the plate 52 as indicated in Fig. 8 by the numeral 64, and these extensions are slidably received in the guide slots cut'into the side pieces 15 to thereby hold and guide the knife in a vertical position.

Secured to and extending between the up per ends of the side pieces 15 is a cross piece 66 and projecting upwardly from this cross piece is a tubular cylinder 67 which extends upwardly into the bore 68 of the handle 19 and cooperates therewith to form an air pump for forcing water through a moistening device. Mounted in the interior of the bore 68 and the cylinder 67 is a coiled spring 69 which acts to normally hold the handle 19 and yoke 18 in the upper position shown in Fig. 1. A ball valve 70 is mounted in the handle 19 and controls an air conduit 71 through which air is admitted to the pump in the usual and well known manner.

The moistening device works on the atomizing principle and consists of a tank 72 which extends across the space between the side pieces 15 and is secured thereto. The tank is arcuate in shape, the center of curvature of which is situated at the axis of the spindle 22 to allow a proper space for the roll of stamps.

A conduit 73 extends between and connects the base of the air pump with the tank 72 and a by pass conduit 741- leading from the conduit 73 is connected to the top of an air discharge conduit 75 mounted on the outside of the tank 72. The air discharge conduit terminates at its lower end in a widenozzle 76 which is of substantially the same width as the stamps. A water conduit 7'? consisting of a thin tube has one end extending down into the bottom of the tank 72 and passes through an orifice between the tank 72 and air conduit 75 as clearly shown in Fig. 1 where it is bent downwardly and extends down through the air conduit to the nozzle 7 6. vided at the top of the tank 72 for filling it with water when required and the orifice through which the tube 77 passes into the air conduit 7 5 is sealed tightly to prevent the escape of air from the tank. 7

Means are also provided for temporarily holding the stamps after they havebeen severed from the stamp roll and comprises a pair of spring clips 80 secured to theside pieces 15. Each clip consists of a pair of vertically extending shank portions 81, the

A filling plug 78 is proupper ends of which are secured to the side piece (as shown in Fig. 7) and the lower ends of which merge into a horizontally ex tending strip 88 (see Figs. 2 to 4:), which is turned inwardly as shown in Fig. 7 to catch the side edges of the stamp after it has been severed and to hold it until en gaged by the stamper 54. Immediately I above the strips 82 the clips have an inward bend 83 adapted to be engaged by the stamper and push the clips outwardly to re lease the stamp just as it is engaged by the stamper. Braking means are provided to prevent the stamp roll from uncoiling and comprisesthe plate 84 pivotally mounted as at 85, a spring 86 being coiledaboutthe pivot to normally'urge the plate8 1 towards the axis of shaft 22, thereby holding the plate 84 against the circumference of the stamp roll and acting as.a brake in a manner which will be readily understood.

Figs. 9 and 10 show a modified form of the plates which act against the rotary plate 28, the plates 25 and 26f being curved sub-.

stantially upon the arc of a circle having itsf center at the axis of the shaft 29. The plate 26 instead ofbeing narrow as shown in Fig. 5 is the full width of the space between the side pieces and the lower end of the plate 26 is formed into a plurality of comb teeth 26 which engage'between similar comb teeth 27 in the adjacent edge of the plate 27. Springs 31 and 3st similar to the springs 31 and 3a are provided to hold the plates against the rotatable plate.

Hui

The operation of the device is as follows Let it be assumed that a roll ofstamps 23 have been inserted into the machine, the :nd of the roll is unwound-and the stamps threaded about the rotatable plate 28, the

plates 25 being manually moved outwardly against the action of the springs 81 and 3a to permitthe first stamps to be placed about the plate 28. The parts are so proportioned that the distance from the lower-edge of the plate 28 (when in the position shown in Fig. 1) to the groove 61 is just equal to the distance between each row of perforations in the stamp strip, and the length of the plate 28 15 equal to the same distance. lit will thus be noted that both edges of the plate 28 will engage the strip of stamps at the perforated lines thereof. The handle 19 is thendepressed carrying with it the yoke 18 and the plate 28 is rotated a half of 'a revolution lit) by means of the cam 39. rack 36 and pinion arms 17 are spaced from the ears 59 so that during the movement of the feeding device there will be no movement of the knife 50 or stamper 54. ,As thedownward movement of the handle 19 is continued. the yoke arms 17 will engage the ears 59 just as the pin 37 passes from the inclined track' l-O to the straight track 41, the movement of the feeding devicetherefore ceases and the stam'per 54 and knife 50 move downwardly as a unit, the knife severing the end stamp from the roll, which stamp drops onto and is held by the clips 80. As the knife 50 reaches the bottom of the groove 61, the spring 58 is compressed and the stamper 54: continues the downward movement while the knife 50 remains stationary. As the stamper' moves downwardly it engages the bends 83 of the clips 80, pushing the clips outwardly to re lease the stamp just as it is engaged by the under face of the'stamper. The downward movement of the handle actuates the air pump formed by the bore 68 and tubular cylinder 67 forcing air through the conduits 73 and 74: into the tank 72 and discharge conduit 75 respectively. The pressure thus generated within the tank forces the water contained therein through the thin tubular Water conduit 77 to the nozzle 76, while the direct flow of air through the conduits 74: and 7 5 produces an atomizing efiect upon the Water according to the well known principles of devices of this character. The fine spray of moisture delivered by the nozzle is thrown directly upon the letter or other mail matter as the handle is moving downwardly and the glued side of the stamp is forced against this moistened surface by the stamper to stick the stamp securely in position. =During the upward travel of the handle under the influence of the spring 69 no movement of the feeding plate 28 is caused because of the disengagement of the rack 36 and pinion 35 and the holding of the shaft 29 by the cam 46 and spring 48 as heretofore described. The engagement of the ends of the rotatable plate 28 with the perforated linesvof the stamp strip and the bending ofstamper will not be disturbed as thereturn movement of the handle will carry the parts backwardly to their initial positions; I

While I have shown the means for controlling the action of the feeding device as mounted on the outside of the side plates,.

and the various guides for the yoke, knife and stamper as slots in the side pieces, it will be understood that the side pieces may be formed of stampings in which the gears and cams will be located in recessed portions inside the plates and that the slotted guidescould also be formed inside the plates bysuitable recessed portions, stamped into the side pieces. The area of the air pump is preferably so proportioned with respect to the tank 72'and air conduits that the pressure will drop towards the latter partof the downwardstrokeof the handle thus causin vious that the principles herein disclosedcould by the exercise of ordinary mechanical skill be applied to a motor driven device in which a small electric motor could be used for reciprocating the handle 19.

Having thus described my invention,'what I claim as new and desire to secure by Letters Patent, is: v t

1. A feeding device adapted to engage and feed a perforated stamp strip comprising a.

rotatable plate, a plurality of plates arranged on opposite sides of the axis of said rotatable plate, and, means to resiliently urge said plurality of plates into the path of movement of said rotatable plate whereby said plurality ofplates will engage the ends of said rotatable plate with a yielding frictionalcontact. I v v 2. A feeding device adapted toengage and feed a perforated stamp strip comprising a rotatable plate, a plurality of pivotally mounted plates arranged on opposite sides of the axis of said rotatable plate, and resilient means to normally urge said. pivotally mounted plates-towards the axis of said rotatable plate and into the, path of movement of the ends of said plate whereby said piv otally mounted plates will engage the ends of said plate with a yieldingfrictional pres sure.

3. A feeding device adapted toengage and feed a perforated stamp strip comprising a rotatable plate whose length is substantially equal to the distance between two adjacent lines of perforations of said strip whereby said strip may be trained about said plate with a line of perforations in engagement with each end of saidplate, means to rotate said plate and means to frictionally engage both ends of said plate during its revolution to hold said lines of perforation in engagement withthe ends ofsaidrotatable plate."

4. A feeding device adapted to engage and feed a'perforated stamp strip comprising a rotatable plate Whose length is substantially equal to the distance between two adjacent lines of perforations of saidystrip whereby ion no Y

said strip may be trained about said plate with a line of perforations in engagement with each end of said plate, means to rotate said late and a luralitv of ilatesarran 'ed rotatable plate whose length is substantially equal to the distance between two adjacent lines of perforations of said strip whereby said strip may be trained about said plate with a line of perforations in engagement with each end of said plate, means to rotate said plate and a plurality of pivotally mounted plates arranged on opposite sides of the axis of said rotatable plate and resilient means to urge said pivotally mounted plates against the ends of said rotatable plate with a yielding frictional contact.

6. A feeding device adapted to engage and feed a perforated stamp strip comprising a rotatable plate whose length is substantially equal to the distance between two adjacent lines of perforations of said strip whereby said strip may be trained about said plate with a line of perforations in engagement with each end of said plate, means to frictionally engage both ends of said plate during its revolution to hold said lines of perforations in engagement with the ends of said plate and means to intermittently rotate said plate a half of a revolution to cause a single stamp to be withdrawn from said roll by said feeding device. 7. A feeding device adapted to' engage and feed a perforated stampstrip comprisin a rotatable plate whose length is substantially equalto the distance between two adjacent lines of perforations of said strip whereby said strip may be trained about said plate with a line of perforations in-engagement with each end of said plate, means to frictionally engage both ends of said plate during its revolution to hold said lines of perforations in engagement with the ends of said plate, means to intermittently rotate said plate a half of a revolution comprising a pinion connected with said plate, a recip 1 rocating rack adapted to be engagedwith said pinion and means to reciprocate said rack.

feed a perforated stamp strip comprising a rotatable platewhose length is substantially equal to the distance between two adjacent lines of perforations of said strip whereby said strip may be trained about said plate with line of perforations in engagement 8. A feeding device adapted toengage and with each end of said plate, means to frictionally engage both ends ofsaid plateduring its revolution to hold said lines of perforations in engagement with the ends'of said plate, means to intermittently rotate said plate a half of arevolution comprising a pinion connected with said plate, a reciprocating rack adapted to be engagedwith said pinion, means to hold said rack in en gageinent with said pinion during the movement of said rack in one direction and out of engagement withsaid pinion'during its movement in the opposite direction and means to reciprocate said rack. I v

9. A feeding device adapted to engage and feed a perforated stamp strip comprisinga rotatable plate whose length is substantially equal to the distance between two ad:

jacent lines of perforations of said strip whereby said strip may be trained about said plate with a line of perforationsin engagement with each end of said plate, means to frictionally engage both ends of said plate during its revolution to hold said lines of perforations in engagement with the ends of said plate, means to intermittently rotate.

said plate a half of a revolution comprising a pin on connected with said plate, a rec1proeating rack adapted to be engaged with; said pinion, means to holdsaid rack in engagement with said pinion during the movement of said rack in one direction and out of en gagement with said pinion during its move ment in the opposite direction comprising a fixed track, a projection on said rack to engage said track, means adapted to engage said rack at the limits of its reciprocations to move said rack transversely'to said fixed track whereby said projection will be alternately engaged with the top and bottom ofsaid track whereby said rack will be positively held in and out of engagement with said pinion and means to reciprocate said rack.

'10.. A feeding device adapted to engage and feed a perforated stamp strip comprising a rotatable plate whose length is substantially equal to the distance between two adjacent lines of perforations of said strip whereby said strip may be trained about said plate with a line of perforations in engagement with each end of said plate, means to frictionally engage both ends of said plate during ,its revolution to hold said lines of perforations in engagement with the ends of said plate, a pinion connected with said plate, a pivotally mounted rack, means to reciprocate said rack, and means to move said rack upon its pivot into and out of engagement with said pinion.- i

11. A feeding device adapted to engage and feed a perforated stamp strip comprising a rotatable plate whose length is substan tially equal to the distance between two adjacent lines of perforations of said strip lit) to normally hold one of the ends of said,

means to frictionally engage both ends of said plate during its revolution to hold said lines of perforations in engagement with the ends of said plate, a pinion connected with said plate, a pivotally mounted rack adapted to mesh with said pinion, means to reciprocate said rack and resilient means adapted to contact with said rack at the ends of its reciprocations to move said rack about its pivot outof and into engagement withsaid pinion.

12. A feeding deviceadapted to engage and feed a perforated stamp strip comprising a rotatable plate Whose length is substantially equal to the distance between two adjacent linesof perforations of said strip whereby said strip may be trained about said plate with a line of perforations in engagement with each end of said plate, means to frictionally engage both ends of said plate during its revolution to hold said lines of perforations in engagement with the ends of said plate, a pinion connected with v resilient means adapted to contact with saidrespectively.

said plate, a pivotally mounted rack adapted to mesh with said pinion, said rackprovided with an upwardly extending L shaped finger,

a fixedtrack adjacent the upper side of said rack with which said finger is adapted to engage, means toreciprocate said rack, and

rack at the ends of its reciprocations and move said rack about ltS PlVOlL and cause said finger to be. urged to a position above "or below said rack and thereby hold said rack during its travel in opposite directions outof or into engagement wlth said pinion 13. In a stamp aflixing machine, a framework, means to detach-ably mount a roll of stamps on said framework, a feeding device, an interconnected stamper and severing knife, a reciprocating operating yoke adapt- -ed to engage said stamper only after a predetermined movement of said yoke, means connecting said feeding device and operating yokecomprising a cam constructed and arranged to causesaid feeding-device to 'be'actuated' only during said predetermined movement of saidyoke, and to be inoperative to actuate said feedingdevice during further movement of said yoke.

'14. In a stamp affixing machine, a frame-- work, means to detachably mount a roll of stamps upon said framework, a rotatable plate whose length is equal to the distance between two adjacent lines of perforations of said roll of stamps, means to frictionally engage the ends of said plate to hold said lines of perforations in engagement with said plate during its revolution, means to rotate said plate, a cuttingknife and means plate at a distance from said cutting knife equal to the distance between said lines of perforations.

15. In a stamp affixing machine, a framework, means to detachably mount a roll of stamps upon said framework, a rotatable plate whose length is equal to the distance between two adjacent lines of perforations of said roll of stamps, means to frictionally engage the ends of said plate to hold said.

lines of perforations in engagement with said plate during its revolution, a reciprocating operating yoke, connections between said koye and rotatable plate to actuate said plate a half of a revolution during a prede-- termined initial movement of said yoke whereby a length of said stamp roll equal to the length of a single stamp will be un-;

rolled.

16; In a stamp affixing machine, a frame work, means to detaohably mounta roll of stamps upon said framework, a rotatable plate whose length is equal to the distance M said plate during its revolution, a reciproeating operating yoke, connections between said yoke and rotatable plate to actuate said plate a half of a revolution during a predetermined initial movement vof said yoke whereby a length of said stamp roll equal to the length of a single stamp will be unrolled, and means to stop the revolution of at the end of a half revolution said plate thereof. I l p j 17. In a stamp affixing machine, a framework, means to mount a roll of stamps upon said framework, a feeding device, a reciprocating operating means, a Stamper, asevering device interconnected with said Stamper with .a lost'motion connection, resilient means to normally'holdsaid reciprocating means at the upper limit of: its travel, cam means connecting said operating means and feeding device constructed, and arranged to cause operation of said feeding device only during a predetermined movement of said voperating means adjacent the upper limits of its travel, said operating means adapted to engage and actuatesaid stamper and severing device onlyduri'ng the movement of said operating means adjacent the lower limits of its travel.

18.- In a stamp atfixing'machine, a framework, means to mount a roll of stamps upon said framework, a feeding device, a reciprocating operating means, a stamper, a;severing device interconnected with said stamper with a lost motion connection, resilient means to normally hold said reciprocating means at the upper limit of its travel, cam'means connecting said operating means and feeding device constructed iii) and arranged to cause operation of said feeding device only during a predetermined movement of said operatin; means adjacent the upper limits of its travel, said operating means adapted to engage and actuate said stamper and severing device only during the movement of said operating means adjacent the lower limits of its travel, and means to engage and hold said severing device after a predetermined movement thereof, said lost motion connection permitting further movement of said Stamper after the movement of said severing device has been stopped.

19. In a stamp affixing machine, a framework, means to mount a roll of stamps upon said framework, a feeding device, a reciprocating operating means, a stamp-er, a severing device interconnected with said stamper with a lost motion connection, resilient means to normally hold said reciprocating means at the upper limit of its travel, cam means connecting Said operating means and feeding device constructed and arranged to cause operation of said feeding device only during a predetermined movement of said operating means adjacent the upper limits of its travel, said operating means adapted to engage and actuate said stamper and severing device only during the movement of said operating means adjacent the lower limits of its travel, means to engage and hold said severing device after a predetermined movement thereof, said lost motion connection permitting further movement of said stamper after the movement of said severing device has been stopped, and resilient means to normally cause said stamper and severing device to move as a unit while permitting relativemovement while said severing device is engaged by said last mentioned means.

20. In a stamp affixing device, a framework, means to mount a roll of stamps on said framework, a feeding device, severing means, a stamper and a 'moistening device comprising a water tank and an nozzle, a

single operating means, an air pump actuated by said operating device for actuating said moistening device, conduits leading from said air pump to said tank and nozzle, a conduit leading from said tank to said nozzle, said tank being mounted on said framework adjacent said airv pump and,

said nozzle being mountedadjacent the base of said framework to deliver a jet of water under pressure to the objectto which the stamp is to be affixed. i

In testimony whereof I have affixed my signature.

GRANVILLE S. RIDER. 

